Detective Chief Inspector Andrew Spliet said on Wednesday that an autopsy had suggested the death was not the result of natural causes.

“It’s not a matter that we are treating as a matter of natural cause,” he said.

Detectives from Riverina Police District have established Strike Force Corer to investigate the 15-month-old boy’s death.

Inspector Spliet said police would not disclose the nature of the boy’s injuries, the autopsy findings or details from interviews with witnesses in the investigation so far.

“A post-mortem (examination) has been conducted in relation to that matter and police obviously have concerns in relation to the contents of that report,” Inspector Spliet said.

“As a result, we will be seeking information from any members of the public that might be able to assist in relation to the manner and cause of death of the young child.”

Emergency services were called to a home in Ashmont, just after 10.45am on January 13, following reports of concern for the welfare of a 15-month-old boy.

The toddler was found unresponsive in the home. 

NSW Ambulance paramedics performed CPR at the scene, before taking the boy to Wagga Base Hospital where he was declared deceased.

Officers established a crime scene at the home, which was examined by specialist forensic officers.

“At this stage we’re treating this investigation at the highest level in relation to determining the cause and manner of death,” Inspector Spliet said.

“We have spoken to a number of witnesses and people who have provided information to us.

“Our investigations are still ongoing and we are seeking information from the public.” 

Inspector Spliet said information from the public could be “vitally important” to the case, particularly from people who had yet to speak with police.

Detectives are conducting investigations to establish how the boy sustained his injuries and urge anyone with information that they believe may assist to contact Wagga detectives or Crime Stoppers on 1800 333 000.